Improvement in adjustable valves for bored or driven wells



M. T. HAPMAN 8L M.-C-. CHAPMAN.

lAdjustable Va-lves for Bored or Driven Wells.

Patented March4,1873.

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m im W W JW, M T w M w /7 %%effef W WW fw @a m AM PHora -uTHaGMPH/c CaNX (ossa/melf Pnaassg) UNITED STATES PATENT OFFICE..

MATTHEW T. CHAPMAN AND MARK C. CHAPMAN, OF AURORA, ILLINOIS.

IMPROVEMENT IN ADJUSTABLE VALVES FOR BORED 0R DRIVEN WELLS.

Specification forming part of Letters Patent No. 136,412, dated March 4,1873.

To all whom it may concern:

Be it known that we, MATTHEW T. CHAP- MAN .and MARK C. CHAPMAN, ofAurora, county of Kane and State of Illinois, have invented an ImprovedAdjustable Valve for Driven or Bored Wells. The following description,taken in connection with the accompanyingplate of drawing hereinafterreferred to, forms a full and exact specification, wherein are set forththe nature and principles of the invention, by which the same may bedistinguished from others of a similar class, together with such partsthereof as are claimed as new and are desired to be secured by LettersPatent of the United States.

Our invention relates to that class of machines made use of for raisingwater, commonly known as driven wells and the nature thereof consists incertain improvements in the details of the construction of the same,hereinafter described and shown.

In the accompanying plate of drawing, which illustrates our inventionand forms apart of the specification thereof, in which correspondingparts are illustrated by similar lettersso tted that it may be movedupward or down ward with facility. The said socket c is also providedwith a cylindrical aperture, g, through which the water rises, andspherical valve h resting upon the topof the said aperture. The couplingD has a thread cut in the bottom of the aperture k for the purpose ofattaching a strainer, and the upper side thereofl has the form of aninverted cone, and is provided with the packing m. v.

When the tube A has been sunk to a sufficient extent to obtain water thecoupling l) with a perforated tube attached thereto is inserted therein.The said coupling, through the agency of the packing m, forms a tightjoint with valve-socket B, and when the said valve-socket ispressed hardagainst the packing it causes the coupling to become firmly secured tothe tube A.

Having thus described the construction and operation of our invention,we cla-im and desire to secure by Letters Patent- The combination of thetube A, valve-seat v B, coupling D, and packing m, all constructed andarranged for operation, as shown, and for the purposes described.

In testimony that we claim the foregoing we have hereunto set our handsthis. 9th day of November, 1872.

MATTHEW THOMAS CHAPMAN. MARK CHAS. CHAPMAN. Witnesses:

GEO. LoUcKs, JAs. A. BLAIR.

